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Korg KROSS-88
88-Note Keyboard Workstation


The Korg KROSS synthesizer features a convenient mic input, a piano-touch hammer action keyboard, and a built-in audio recorder.
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Korg KROSS-88
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The Korg KROSS synthesizer features a convenient mic input, a piano-touch hammer action keyboard, and a built-in audio recorder. Plus, it can run on 6x AA batteries for true portability.

The KROSS' top panel as seen by the player is a sleek black color, while the rear and side panels visible by the audience use a bold, red color scheme.

The piano, electric piano, and drum sounds of the KROSS have been taken from Korg's flagship synthesizers, giving the KROSS a set of sounds that surpasses other instruments in its class.

The grand piano features lavishly-sampled decays with three levels of velocity as well as reproducing the noises produced by the damper pedal, ensuring that every nuance of your performance is reflected in the sound. Also included are an upright piano (unusual for a PCM synth), as well as distinctive sounds from Korg's famed SG-1D Sampling Grand and M1 Music Workstation. The five classic electric piano sounds are just as expressive as the acoustic piano sounds; they also include effect settings, giving you a complete package of the performance-ready sounds that you want.

In addition, careful attention has been paid to the drum sounds that are indispensable for song production on a workstation, making them realistic and fresh.

The KROSS' PCM data is approximately twice as large as preceding models like the X50 and the PS60. Staples such as the frequently-used rock/jazz organ, strings, brass, and synth sounds have been brushed up. There are also instruments such as toy piano, accordion, combo organ, church organ, and even vintage instruments such as a tape sampler, as well as bell-type sounds and the sounds you need for cutting-edge dance music and electronica-unique sounds that have not been included in a synth of this class. Korg's design goal has been to make KROSS the only instrument you need.

The EDS-i sound engine is a high-quality sound engine distilled from the EDS/EDS-X sound engines found on Korg's most advanced instruments. It allows you to use a total of seven effects simultaneously: five insert effects and two master effects.

Ranging from standards such as delay, reverb, chorus, flanger, and rotary speaker, and also including amp modeling powered by Korg's proprietary "REMS" modeling technology, and even a robot voice vocoder, you can choose from 134 different high-quality effects.

While the KROSS provides an extremely broad range of sounds, there are two dedicated dials that let you easily find the sound you need.

First use the category dial to choose the broad category such as piano, electric piano, organ, bell, synths, basses, or strings. Then turn the select dial to find the sound you want. It's a quick way to focus on selecting the needed sounds without being distracted by sounds of another type.

Sounds that you've created or that you use frequently can be registered to four banks of 16 buttons, giving you a total of 64 sounds that can be recalled at a single touch. You can also register audio songs and recall them along with sounds.

The MIC IN jack (1/4" phone jack) lets you directly connect a mic. If you're a vocalist as well as a player, there's no need to obtain a separate mixer.

In addition, there's a LINE IN jack (stereo 1/8" jack) for you to connect your audio player, giving you the option of performing along with the playback in a variety of situations on stage or anywhere else you go.

Dedicated buttons are provided for Layer/Split settings. Start by selecting the first program you want to use; then press the dedicated button to enable Layer or Split. When this is on, a screen will appear in which you can choose the other sound and specify details such as the split point. Then simply write your settings, and the layer/split sound will be saved as a Combination.

The built-in stereo audio recorder can record not only the performance of the KROSS itself, but also the sound of a mic or external input. You can play backing tracks that you created, or overdub onto them to create songs and demos.

Audio can be imported and exported as WAV files using an SD card (separately sold), making it easy to exchange material with your computer.

The KROSS features a step sequencer inherited from the popular Electribe series. It's a simple design in which you use the sixteen buttons to turn individual notes on or off, allowing you to quickly and easily create original rhythm patterns of up to 64 steps.

The lightweight body of the KROSS contains all of the basic functionality you expect from a music workstation, including a full-featured 16-track MIDI sequencer with quantization, copy and paste, and individual note event editing. By using an SD card (sold separately), you can exchange SMF-format data with your computer. The KROSS gives you a full set of workstation and production tools, including a Drum Track function that lets you add rhythm simply by pressing a dedicated button, and an arpeggiator that can be used not only with synth sounds but also to generate guitar and bass riffs.

You can connect the KROSS to your computer via USB for easy transfer of MIDI data. By using KROSS Editor and Plug-In Editor you can simultaneously view and edit large numbers of parameters on your computer, and use the KROSS within your DAW as if it were a software synthesizer.

Korg KROSS-88 Specifications:

  • Keyboard:
    • 88-key: NH (Natural Weighted Hammer Action) keyboard
      • Velocity sensitive is supported, after touch is not supported
      • Standard A0 - C8 (transposable in the range [A-1...C7]-[A1...C9])
      • The NH keyboard reproduces the touch of an acoustic piano, with a heavier feel in the low register and a lighter feel in the upper register.
  • System: EDS-i (Enhanced Definition Synthesis -integrated)
  • Sounds:
    • Maximum Polyphony:
      • 80 voices (80 Oscillators) / Single Mode
      • 40 voices (40 Oscillators) / Double Mode
        *The maximum simultaneous voice polyphony will vary depending on oscillator settings such as stereo multisamples and velocity crossfading.
    • Preset PCM Memory:
      • Approximately 112 MB (In case of 48 kHz, 16-bit Linear PCM converted)
      • 421 multisamples (including 6 Stereo multi-samples)
      • 890 drum samples (including 49 Stereo drums amples)
    • Program:
      • Oscillator:
        • OSC1 (Single)
        • OSC1 + 2 (Double): Stereo multisamples are supported, and four levels of velocity switching/crossfading/layering are possible for each oscillator
      • Filters:
        • Four types of filter routing (single, serial,parallel, 24 dB)
        • Two multi-mode filters per oscillator (low pass, high pass, bandpass, band reject)
      • Modulation: For each oscillator: two envelope generators (Filter & Amp), Two LFOs, Two key tracking generators (Filter & Amp), Two AMS mixers, Pitch EG, Common LFO, Two common key tracking generators
    • Combination:
      • The Number of Timbre:
        • Max: 16 Timbres
        • Key zone and velocity zone settings can be used to switch sounds,and the Tone Adjust function allows program settings to be modified.
      • Master Keyboard Functionality: External MIDI device control
    • Drum Kit:
      • Stereo and mono drum samples
      • 4 velocity zones switch (crossfades and layers)
    • The number of Combination:
      • User: 640 Program (512 Preload)
      • The number of Program: 384 Combination (256 Preload)
      • The number of Drum Kit: 48 Drum Kit (32 Preload)
      • Preset: 256 GM2 Program + 9 GM2 Drums Program
  • Favorite: User: 64 (16 favorite x 4 bank)
  • Effects:
    • Insert Effects: 5 Insert Effects (stereo in/out)
    • Master Effects: 2 Master Effects (stereo in/out)
    • Effect Types:
      • Total: 134 types
        • 74 types for Insert Effect
        • 101 types for Master Effect 1
        • 120 types for Master Effect 2
    • Modulation: Dynamic Modulation
    • Effects Control Busses: Stereo side chain (Limiter, Gate, Vocoder, etc)
  • Polyphonic Arpeggiator:
    • Program Mode: 1 unit
    • Combination, Sequencer Mode: 2 units
    • Number of pattern: 1,028 User Arpeggio patterns (916 Preload)
    • Number of Arpeggio patterns: 5 Preset Arpeggio patterns
    • 1,028 User Arpeggio patterns (916 Preload): 1,028 User Arpeggio patterns (916 Preload)
    • Number of Tone: 12 tones
    • Number of step: Max: 64 steps
  • Step Sequencer:
    • Program Mode: 1 unit
    • Combination Mode: 1 unit
    • Sequencer Mode: 1 unit
    • Number of Tone: 12 tones
    • Number of step: Max: 64 steps
      *Step sequencer settings can be created independently for each program, combination, and song.
  • Drum Track:
    • Preset:
      • 700 patterns (shared with sequencer patterns)
      • Trigger Mode/ Sync/ Zone settings
  • Sequencer:
    • Tracks: 16-track MIDI Sequencer
    • Number of Songs: Max; 128 Songs
    • Resolution: 1/480
    • Tempo: 40.00 - 300.00 (1/100 BPM resolution)
    • Counter: Measure / Beat / Tick
    • Number of tone: 12 tones
    • Template Song: 16 preset / 16 user template songs
    • Preset: 700 Patterns (shared with Drum Track patterns)
    • Format: KORG (KROSS) format, SMF format 0 and 1
  • Audio Recorder:
    • Recording format: PCM Audio format (48 kHz / 16-bit)
    • Import: WAV (.wav): 44.1 kHz* / 16-bit, 48 kHz / 16-bit, Stereo
      *Automatic conversion from 44.1 kHz to 48 kHz
    • Export: WAV (.wav): 48 kHz / 16-bit
    • Continuity recording time: Max: 3 hours
    • Recording time: Depends on the SD card that is used; approximately 90 minutes per 1 GB
    • Number of Songs: Max: 200 Songs
    • Number of multi-track recordings: Depends on the amount of space remaining on the SD card
    • Counter: Hour/ Min/ Sec
  • Media: File, Utility, Information
  • Controllers:
    • General Control: Pitch bend wheel, Modulation wheel, SW [1], SW [2], TEMPO knob, TAP button
    • Step Sequencer/Favorite: 1-16 buttons, STEP SEQ button, SET UP button for Control, RUN button, FAVORITE button,
    • BANK button for Control, LED: A/B/C/D (It uses both as “STEP SEQ” and “FAVORITE”)
    • Drum track: DRUM TRACK button
    • Arpeggiator: ARP button
    • Effect On/Off: MASTER FX button
    • Audio Recorder: SETUP button, PLAY/PAUSE (> / II) button
  • User Interface:
    • Display: 240 x 64 pixel LCD w/backlight, with adjustable contrast (hold the EXIT button and turn the Value dial)
    • Category: [CATEGORY], [SELECT] dials
    • Mode: [COMBI], [PROG], [SEQ], [GLOBAL/MEDIA] buttons
    • VALUE controller: [VALUE] Dial, [Cursor (Left/Right/Up/Down)], [EXIT], [ENTER],[FUNCTION],[PAGE+],[PAGE-],[MENU] buttons
    • Sequencer: [PAUSE], [REW], [FF], [LOCATE], [REC], [START / STOP] buttons
    • TEMPO: [TEMPO] knob, [TAP] button
    • Split/Layer: [SPLIT], [LAYER] buttons
    • Others: [AUDIO IN] button, [VOLUME] knob
  • Control Input: Damper (Half Damper is supported),Assignable Switch, Assignable Pedal
  • Outputs:
    • Audio Output (L/MONO, R)
      • Connector: 6.3mm Phone jack (Unbalanced)
      • Output Impedance: 1.1kOhm (L / Mono terminal: in case of Mono output, = 550 Ohms)
      • Maximum level: +10.0 dBu, Load Impedance: more than 10 kOhm
        [VOLUME] It is possible to control by knob.
    • Headphone Output:
      • Connector: 3.5mm Stereo mini phone jack
      • Output Impedance: 33 Ohms
      • Maximum level: 40 + 40 mW
        [VOLUME] It is possible to control by knob.
  • Inputs:
    • AUDIO INPUT (Line In):
      • Connector: 3.5mm Stereo mini phone jack
      • Input Impedance: 1.1 kOhm
      • Maximum level: -42 - 0 dBu
    • MIC IN:
      • Connector: 6.3mm Phone jack (Unbalanced)
      • Input Impedance: 33 Ohms
      • Maximum level: -48 - -6 dBu
  • Other Connectors:
    • MIDI: IN, OUT
    • USB: Type B x1 (USB-MIDI Interface)
    • SD Card Slot: 1 slot, Max: 2 GB SD Memory Card is supported, Max: 32 GB SDHC Memory Card is supported, (SDXC Memory Cards are not supported)
  • Power Supply:
    • Power Supply: AC Adaptor (DC9V), POWER button, AA alkaline battery x 6, or AA Ni-MH: Nickel metal hydride battery x 6
    • Battery Life:
      • In case of AA alkaline battery x 6 =Approximately 4 hours*
      • In case of AA Ni-MH: Nickel metal hydride battery (1900 mAh) x 6 = Approximately 5 hours*
        *Varies according to the batteries used and the conditions of usage
    • Power Consumption: 5 W
  • Dimensions (WxDxH): 57.01" x 15.08" x 5.32" (1,448 x 383 x 135 mm)
  • Weight: 27.34 lbs (12.4 kg)
  • Accessories: AC Adapter, Quick Start Guide
  • Optional Accessories (sold separately):
    • XVP-10 Expression/Volume pedal
    • EXP-2 Foot Controller
    • DS-1H Damper Pedal
    • PS-1, PS-3 Pedal Switch
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